Use type-less constants to support php8.1+ (Muqsit#254)

PocketMine still sits at php8.1 as the minimum version.

Author: darknessplx

src/muqsit/invmenu/session/PlayerWindowDispatcher.php

@@ -22,9 +22,9 @@
 
 final class PlayerWindowDispatcher{
 
-	public const int STATE_SENDING = 0;
-	public const int STATE_FINALIZING = 1;
-	public const int STATE_COMPLETED = 2;
+	public const STATE_SENDING = 0;
+	public const STATE_FINALIZING = 1;
+	public const STATE_COMPLETED = 2;
 
 	private ?TaskHandler $task_handler = null;
 	private ?Closure $container_open_callback = null;
@@ -196,4 +196,4 @@ public function then(InvMenu $menu, ?string $name, ?Closure $callback) : void{
 		}
 		$this->after_finalization = [$menu, $name, $callback];
 	}
-}
+}